www.makemkv.com

Wanted to post this in case it helps others who encounter the same issue, that being UHD disks failing to RIP when unrestricted speed has been enabled on compatible drives.

In my case I it was a new disk, have processed many many disks but this one refused to RIP even with careful cleaning.

This ...

Another big thanks to Mike!!

Thanks for the replies I'm aware of the fact that `The volume key is unknown for this disc - video can't be decrypted` happens when the disk isn't known yet.

This was more about the process of downloading the update, which I've not had report an error before. Usually it either doesn't download an ...

This has been raised a few times in the past that makemkv reports:
Downloading latest HK to C:\Users\steveh/.MakeMKV ...
Automatic HK downloading is disabled or failed.
Saved AACS dump file as C:\Users\<user>/.MakeMKV/<disk specific file>.tgz
The volume key is unknown for this disc - video can't be ...

For the UK version I believe the correct file is 00929.mpls, as identified by PowerDVD and process monitor, which is equal to 00287.mpls I haven't watched to confirm yet.

Title information
Name: Criminal (English)
Source file name: 00287.mpls
Duration: 1:53:36
Chapters count: 12
Size: 28.5 GB ...